Full TGIF Record # 419
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Publication Type:
Author(s):Jarvis, S. C.; Jones, L. H. P.; Clement, C. R.
Author Affiliation:The Grassland Research Institute, Hurley, Maidenhead, Berks
Title:Uptake and transport of lead by Perennial ryegrass from flowing solution culture with a controlled concentration of lead
Source:Plant and Soil. Vol. 46, No. 2, February 1977, p. 371-379.
Publishing Information:Dordrecht, Netherland: Martinus Nijhoff Publishers
Related Web URL:http://link.springer.com/article/10.1007/BF00010093
    Last checked: 10/14/2015
    Notes: Abstract only
Keywords:TIC Keywords: Lolium perenne; Lead; Daylight; Artificial light; Roots; Shoots
Abstract/Contents:Perennial ryegrass was grown in flowing solution culture in a glasshouse, and during February lead was added to the nutrient solution and held at a constant concentration;uptake and transport of lead were followed in conditions of low intensity daylight or higher intensity artificial light. Uptake of lead by the roots was most rapid during the first 4 days after addition to the nutrient solution. After this time there was a steady increase in uptake per g dry weight of root with plants grown in artificial light having a much higher rate of uptake than plants grown in daylight. Roots always contained more lead than the corresponding shoots and concentration was always greater in the roots than in the shoots. The concentration in both roots and shoots increased with time but that in plants grown in artificial light was higher than that in plants grown in daylight. Two phases of uptake were identified, an initial rapid phase which is probably an exchange phenomenon, and a sow sustained phase which may be under metabolic control. A lower proportion of the total lead taken up remained in the roots of plants grown in artificial light than in those grown in daylight. This difference may have resulted from differences in (1)the production of organic carriers and/or (2)transpiration.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jarvis, S. C., L. H. P. Jones, and C. R. Clement. 1977. Uptake and transport of lead by Perennial ryegrass from flowing solution culture with a controlled concentration of lead. Plant Soil. 46(2):p. 371-379.
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